大家好，关于flask_wtf,官网上的实例
1
1208from flask_wtf import FlaskForm
from wtforms import StringField
from wtforms.validators import DataRequired
class MyForm(FlaskForm):
name = StringField('name', validators=[DataRequired()])第一行这样的引入方式，我怎么尝试不成功？在pytone IDE中提示：
ImportError: cannot import name FlaskForm
如果按常规的引入方式：
from flask_wtf import Formpythone IDE是没问题，但在pycharm中，会有异常提示：
This inspection detects names that should resolve but don't. Due to dynamic dispatch and duck typing, this is possible in a limited but useful number of cases. Top-level and class-level items are supported better than instance items
以上，求解？
官网的例子是错的吗？
pycharm中为什么公有波浪提示？
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